I wonder if this might be effective as a treatment for chronic Lyme sufferers as well as a preventative measure.
There are some people who believe that chronic Lyme is caused by persistent hidden infections, but you have to cherry-pick a lot of evidence and ignore a lot of contradictory evidence to arrive at that conclusion. Regardless, it seems unlikely that the vaccine would help if the infection had some mechanism to hide from the immune system anyway, as they claim.